The ADCMP551/ADCMP552/ADCMP553 are single supply, high speed comparators fabricated on Analog Devices’ proprietary XFCB process. The devices feature a 750 ps propagation delay with less than 150 ps overdrive dispersion. Dispersion, a measure of the difference in propagation delay under differing overdrive conditions, is a particularly important characteristic of high speed comparators. A separate programmable hysteresis pin is available on the ADCMP552.
A differential input stage permits consistent propagation delay with a common-mode range from –0.2 V to VCCI – 2.0 V. Outputs are complementary digital signals are fully compatible with PECL 10 K and 10 KH logic families. The outputs provide sufficient drive current to directly drive transmission lines terminated in 50 Ω to VCCO - 2 V. A latch input is included and permits tracking, track-and-hold, or sample-and-hold modes of operation. The latch input pins contain internal pullups that set the latch in tracking mode when left open.
The ADCMP551/ADCMP552/ADCMP553 are specified over the –40°C to +85°C industrial temperature range. The ADCMP551 is available in a 16-lead QSOP package; the ADCMP552 is available in a 20-lead QSOP package; and the ADCMP553 is available in an 8-lead MSOP package.
|Title||Content Type||File Type|
|ADCMP551/ADCMP552/ADCMP553: Single-Supply High Speed PECL/LVPECL Comparators Data Sheet (Rev A, 06/2013) (pdf, 352 kB)||Data Sheets|
|Comparators Product Brochure 2007 (pdf, 4991 kB)||Product Selection Guide|
|Automatic Test Equipment Brochure (pdf, 2037 kB)||Overview|
|Power System Management (Spring 2007) (pdf, 1170 kB)||Overview|
|RAQs index||Rarely Asked Questions||HTML|
|Does Analog Devices offer any examples application circuits for Hi Speed Comparators?||FAQs/RAQs||HTML|
|Glossary of EE Terms||Glossary||HTML|
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